Machine for facilitating the trimming of wall-paper.



C. GREEN, JR.

MACHINE FOR FACILITATING THE TRIMMING OF WALLPAPER.

APPLICATION FILED APR. 19, 1913.

1, 1 4:3, 1 87 Patented June 15, 1915.

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THE NORRIS PETERS CO.. PHOTO-LITHO-. WASHINGTON, D. Q

C. GREEN, JR.

MACHINE FOR FACILITATING THE TRIMMING 0F WALL PAPER.

APPLICATION FILED APR. 19. 1913.

Patented June 15, 1915.

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CHARLES GREEN, JR., OF KINGS CROSS, LONDON, ENGLAND.

MACHINE FOR FACILITATING THE TRIMMING OF WALL-PAPER.

Specification of Letters Patent.

Patented June 15, 1915.

Application filed April 19, 1913. Serial No. 762,281.

To all whom it may concern:

Be it known that I, CHARLES GREEN, Jr., engineer, a subject of the Kingof Great Britain, residing at 21 Northdown street, Kings Cross, London,England, have invented certain new and useful Improvements in Machinesfor Facilitating the Trimming of Wall-Paper, and of which the followingis a specification.

This invention refers to apparatus for attachment to a machine forprinting wallpapers, through which apparatus the paper before it hasbeen printed is caused to travel, and by passing between groovingrollers set at the required distance apart, grooves are impressed onopposite sides of the paper at a distance apart corresponding with thepattern to be printed onthe paper and so as to leave the unprinted edgesof the paper that is, the list or trimmings, outside the said grooves.

Now in machine-printed wall-papers the pattern is, not always printed inan exactly central position on-the roll of paper, the result being thatthe unprinted edge or list varies in width, sometimes being wider on oneside of the printed pattern than on the other, and therefore to fulfilthe requirement of grooving the paper always at the edges of the patternabout to be printed, means are provided, according to this invention,for the simultaneous lateral adjustment of .the set of grooving rollersor disks relatively to the wall-paper while the machine is running, andthe said grooving rollers are so laterally adjusted by a hand controlledmechanism; thus the grooving rollers are always made to correspond withthe edges ofthe pattern being printed. Moreover it is also desirablethat convenient means should be provided by which the operator can atany time desired throw the grooving rollers into and out of operation.

' The object therefore of the present invention is to provide animproved construction of apparatus or machine, and by which the beforementioned requirements are efiiciently carried out, and the saidinvention will now be described with reference to the accompanyingdrawings.

Figure 1 shows in two portions a sectional front elevation of theapparatus applied to the frame of a wall-paper printing machine, andFig. 2 is a sectional end view of the said apparatus, Fig. 3 being adetail in plamhereafter referred to,

A portion of a frame 1 of a wall-paper printing machine is shown at Fig.1, to which two brackets 2, 3 are attached. One of these brackets 2 isformed with guides 4 on which an adjustable standard 5 is carried, whilea similar standard 5 is fixed to or formed with the bracket 3. Theadjustment of the said standard 5 to the right or left is effected bymeans of a screw-threaded shaft 6, carried in the standard 5 andengaging with its screw thread in a correspondingly screw-threadedbearing or nut in the standard 5; the lateral adjustment shaft 6 isfitted at each end with a hand wheel 6", by which it can be rotated andthereby vary the distance of the standard 5 from the standard 5*. Thestandards 5, 5 carry in bearings two shafts 7 and 8, which in their turncarry the grooving rollers 9 and 10, and 11 and 12, the edges of whichare held together with a pressure which may be adjusted by mechanism nowabout to be de scribed.

The bearings of the shaft 8, carrying the lower set, in this instance,of grooving rollers 11, 12, are slidable in guides in the standards 5,5", and immediately below the axis of the shaft 8 is a shaft 13 alsocarried in bearings in the standards 5, 5". The shaft 13 is fitted witheccentrics 14c, 15, the eccentrio 14 being revoluble with the shaft 13by means of a feather and groove, so that the said shaft 13 can slideendwise through the standard 5 justment of each side of with collars.

Vertical sliding bearings 16, 17 for the shaft 8 carry adjustment screws18, 19, the heads of which rest upon the eccentrics 14, 15 respectively.The pressure adjustment shaft 13 is fitted at one end with means bywhich it can be given the necessary angular adjustment, such as with alever 20, to cause the separation or bringing together of the groovingrollers 9, 10, 11 and 12.

The width between the grooving rollers 9 and 11 and 10 and 12 isregulated by a screw adjustment 21 working in conjunction with a screwthread on the shaft 7 the said screw adjustment moving a sleeve 22 towhich the grooving roller 9 is attached, and which sleeve 22 carries aprojecting flange 23, which takes between two collars 24: carried on' asleeve 25 on which the grooving roller;11.issupported.- The sleeves 22and and accompanies the lateral adthe standard 5, being fitted on thebearing in that standard 25 are carried upon feathers and grooves ontheir respective shafts 7 and 8, so that they can be adjusted endwisethereon but must accompany the revolving motion of the said shafts.

The paper to be grooved is shown in the dot and dash lines at 26 in Fig.2, and it will be seen that it passes over a guiding roller 27 and undera guiding roller 28, and between these two rollers it passes between thegrooving rollers.

The shafts 7 and 8 are driven at a uniform speed by means of spur wheels29 and 30, by a belt wheel 81, shown by way of example, or by gearing.

WVhen the apparatus is at work and the wall-paper is passing through thegrooving apparatus to the printing machine, the grooving rollersarerotated and impress deep grooves from opposite sides into the paper insuch positions as to register with the edges of the pattern to beprinted thereon, and if these grooves show the least sign of leaving thedesiredpath, one of the hand wheels 6? is turned, which traverses thestandard 5, the latter carrying with it the shafts 7 and 8 and the shaft13, but not moving laterally the rollers 27 and 28, the standard 5sliding over the spindles of the said rollers. One of the rollers 28 foreX- ample, is shown at Fig. 3 where one spindle end 28 is capable ofsliding through its bearing in the laterally adjustable standard 5,while the other spindle end is held by collars in its bearing in thestandard 5*.

A little practice soon enables the operator to keep the grooving rollersor disks running steadily upon the exact line where it is desired togroove the paper. Paper grooved in this way is sold in the piece, andthe un-' printed edges protect the piece from injury either from light,damp or other cause. They also protect the paper during thepastingoperation. The tearing off of the strip leaves a beveled edge on thepaper, which is especially suitable for abutting against the edge of thenext piece of paper which is to be applied adjacent to it.

What I claim as my invention and desire to secure by Letters Patent isp 1. Apparatus for grooving wall-paper as it enters the printing machineto facilitate the trimming thereof; comprising two pairs of groovingrollers between which the paper passes, two parallel. shafts carryingsaid rollers, standards in which bearings for the opposite ends of saidshafts are provided,

brackets on the frame of said printing machine to support sa1dstandards,traversing means operative on one of said standards to adjustit nearer to or farther from the other and stationary standard, means toprevent endwise movement of said shafts in the bearings in saidadjustable standard,mans to driving mechanism to rotate said shafts andv grooving rollers.

2. Apparatus for groovlng wall-paper as it enters the printing machineto facilitate the trimming thereof; comprising two parallel shafts, twogrooving rollers on each shaft and rotatable therewith the groovingrollers on one shaft coacting with the grooving rollers on the othershaft, standards at opposite ends of said shafts, brackets on the frameof saidprinting machine to carry said standards, stationary bearings insaid standards for one of said shafts, adjustable bearings in saidstandards for the other of said shafts, means operative independentlyupon each of said adjustable bearings to adjust the same toward and awayfrom said stationary bearings to regulate the distance between thegrooving rollers and driving mechanism to rotate said shafts.

8. Apparatus for grooving wall-paper as it enters the printing machineto facilitate fixed to each of said shafts and opposite each other, asecond grooving roller on each of said shafts, said latter rollers beinglocated opposite each other'and capable only of longitudinal movementvon said shafts, means in connection with one of said shafts to effectthe longitudinal movement of said grooving .roller, means forsimultaneously movin the corres ondin roovin 'roller b b i b on theothershaft, and driving mechanism for rotating said parallel shafts.

4. Apparatus for grooving wall-paper as it enters the printing machineto facilitate the trimming thereof comprising an upper and a lowerparallel shaft, two grooving rollers on each shaft and rotatable;therewith the grooving rollers on one shaft coacting with the groovingrollers on the other shaft, standards at opposite ends of said shafts,brackets on the frame of said printing machine to carry said standards,stationary bearings in said standards for the upper shaft, verticallymovable bearings in.

said standards'for saidlower shaft, recipro'catory means carried by saidstandards and operative simultaneously 'upon said movable bearings toeffect the movement. of

lar to the aXis of said upper shaft, and driving 'mechanism to rotatesaid upper and lower shafts. V r V j I 5. Apparatus for groovingwall'papei' as said lower shaft in a direction perpendicuracit entersthe printing machine to facilitate 'the trimming thereof; comprising twopairs of grooving rollers between which the paper passes, two parallelshafts carrying said rollers, standards in which bearings for theopposite ends of said shafts are provided, brackets on the frame of saidprinting machine to support said standards, traversing means operativeon one of said standards to adjust it nearer to or farther from theother and stationary standard, means to prevent endwise movement of saidshafts in the bearings in said adjustable standard, rotatable guidingrollers carried in bearings in said standards to guide the paper to andfrom said grooving rollers, means to prevent longitudinal movement ofsaid guiding rollers in said stationary standard and driving mechanismto rotate said shafts and grooving rollers.

6. Apparatus for grooving wall-paper as it enters the printin machine tofacilitate the trimming thereo comprising a bracket on the frame of theprinting machine, a

Copies of this patent may be obtained for five cents each, by addressingthe standard fixed to said bracket, a second bracket on said frame,guides on said second bracket, a standard adjustable on said guides toand from said fixed standard, a screw-threaded shaft, hearings in saidbrackets to support said shaft the screw thread of which engages ascrew-threaded aperture in said adjustable standard, means for impartingrotary movement to said screw-threaded shaft to cause the traversing ofthe said adjustable standard on its guides, two parallel shafts carriedin bearings in said standards, means to prevent longitudinal movement ofsaid shafts in the bearings in the adjustable standard, two pairs ofcoacting grooving rollers on said shafts and driving mechanism to rotatesaid shafts and grooving rollers.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

CHARLES GREEN, JUNR. Witnesses:

THOMAS W. Rooms, WILLIAM A. MARSHALL.

"Commissioner of Patents,

Washington, D. G.

